<!DOCTYPE html>
<html lang="cn">
<head>
    <title>Test Page</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        body {
            font-family: Arial, sans-serif;
            font-size: 16px;
            line-height: 1.5;
            margin: 0;
            padding: 0;
            transition: background-color 0.5s; /* 添加一个平滑过渡效果 */
            background-color: #eecbde;
        }
        
        p:hover,h1:hover {
            background-color: #dd0b0b;
            /* 添加一个鼠标悬停的效果 */
            /* 添加一个鼠标悬停的文字效果 */
            color: #008cc4;
            animation:alternate 2s infinite;
        }
        a:hover {
                      cursor: pointer;
            color: #008cc4;
            text-decoration: none;
        }
    </style>
</head>
<body>
    <h1>Welcome to the Test Page</h1>
    <p>
      This is a test page for the IoT project.    </p>
<br>
      <a href="https://www.w3schools.com/html/" target="_blank">
        <img src="https://www.w3schools.com/w3images/mountains.jpg" alt="Mountains" >  
      </a>


</body>
</html>